Varicap: Operation

Today I will show you how a varicap works, demonstrating it with the help of an oscilloscope.
In order to do that we will need the said oscilloscope and a couple more components: a power supply unit, a couple of resistors and a varicap.
Varicap is a diode operating as a variable capacitor.
Peak voltage in this case corresponds to the minimum capacity and vice versa ...